<!DOCTYPE html>
<html>

<head>
    <title>topBar</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="keywords" content="" />
    <meta name="description" content="" />
    <meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no">
    <meta name="format-detection" content="telephone=no" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <meta name="author" content="longtuhuanyu.com" />
    <link rel="icon" href="data:;base64,=">

</head>

<body>
    <button type="submit" id="topBarshow" class="btn btn-primary">点击出现topBar</button>
    <button type="submit" id="topBarhide" class="btn btn-primary">点击隐藏topBar</button>
</body>

</html>
